2560111352566 has 32 divisors (see below), whose sum is σ = 4121512424640. Its totient is φ = 1189548936576.

The previous prime is 2560111352509. The next prime is 2560111352567. The reversal of 2560111352566 is 6652531110652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560111352567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41340 + ... + 2263168.

It is an arithmetic number, because the mean of its divisors is an integer number (128797263270).

Almost surely, 2^{2560111352566} is an apocalyptic number.

2560111352566 is a deficient number, since it is larger than the sum of its proper divisors (1561401072074).

2560111352566 is a wasteful number, since it uses less digits than its factorization.

2560111352566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222568.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 2560111352566 in words is "two trillion, five hundred sixty billion, one hundred eleven million, three hundred fifty-two thousand, five hundred sixty-six".